Comparison

AI Clean Flow vs PDF Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI Clean Flow

This app helps you reclaim storage space on your device by identifying and removing duplicate photos, blurry shots, old screenshots, and large videos. It offers tools to compress videos, organize contacts, and clean emails, with a private vault for important content. You have full control over what gets deleted.

Highlights
  • Find duplicate and similar photos
  • Identify large videos
  • Compress large videos
  • Organize duplicate contacts
  • Clean up unwanted emails
  • Private vault for important content
  • Preview before deletion
Features
Read full description

Take Back Your Storage Your photo library is full of duplicate photos, screenshots, blurry shots, and old videos. AI Clean Flow helps you quickly find unnecessary content, organize your photo library, and free up valuable storage space. Keep the memories that matter. Remove the clutter that does not. Smart Photo Cleanup • Find duplicate and similar photos. • Review blurry photos and old screenshots. • Identify large videos taking up space. • Swipe right to keep and swipe left to clean up. • Preview everything before deletion. Powerful Storage Tools • Compress large videos. • Organize duplicate contacts. • Clean up unwanted emails. • Find files that are taking up the most space. • Keep important content in a private vault. You Stay in Control AI Clean Flow only helps you identify content that may be safe to remove. Before anything is deleted, you can: • Preview your photos and videos. • Select what you want to keep. • Review each cleanup category. • Confirm or cancel the cleanup at any time. Nothing is removed without your confirmation. Private and Secure Your personal content deserves protection. • Access requires your permission. • Deletion requires your confirmation. • Private photos and videos can be protected with Face ID or a passcode. • You can manage access permissions at any time. Make Room for More Memories Clean your iPhone in just a few simple steps and enjoy a more organized photo library. Download AI Clean Flow today and make space for the photos, videos, and moments that matter most. Subscription Information Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. Renewal charges are applied within 24 hours before the current period ends. You can manage or cancel your subscription in your Apple ID account settings. Privacy Policy: https://cleansflow.com/privacypolicy.html Terms of Use: https://cleansflow.com/termsofuse.html Subscription Agreement: https://cleansflow.com/subscription.html

About

PDF Reader

This utility app allows users to open and manage various file formats, including PDFs, Docs, PPTs, and Excels. It offers powerful search capabilities, clear viewing options with annotation browsing, and easy sharing and printing of documents. Enjoy a high-speed, stable experience with a convenient night mode for reading in low light.

Highlights
  • Full-text PDF search
  • Annotation browsing
  • Outline support
  • Document sharing and printing
  • High-speed viewing
  • Night mode
Features
Read full description

PDF Reader - EZ Read PDF has become an indispensable application for daily study and life, which can open files in various formats. Key-Features At A Glance: • POWERFUL SEARCH: ∙ Full-text-search your entire PDF library. ∙ Search inside specific documents with easy navigation through the search results. • CLEAR VIEW: ∙ Easily browse through all your annotations. ∙ Full PDF outline support. You can even search the outline. ∙ Get an overview of all your bookmarked or annotated pages just with a single tap. • SHARE and PRINT: ∙ Easily share your annotated documents with your friends or co-workers. ∙ Print your annotated and edited PDFs. ∙ You can even share or print single pages of a document. • HIGH SPEED and STABILITY: ∙ Rapid viewing of PDF documents. ∙ Smooth display of very large PDF files. • NIGHT MODE: ∙ Makes reading in the dark much easier on the eyes Subscription Terms and Details - Get unlimited access to all features - No ads: ① USD $9.99/week ② USD $29.99/year - The payment will be charged to your iTunes account at confirmation of purchase. - The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Subscription may be managed and auto-renewal may be turned off by going to Account Settings after purchase. - The account will be charged for renewal within 24 hours prior to the end of the current period. - Any unused portion of a free trial period will be forfeited when the user purchases a subscription to that publication. --- Terms of Use: https://pdfreader.vip/pdfreader-terms.html Privacy Policy: https://pdfreader.vip/pdfreader-privacy.html Web:https://pdfreader.vip/

Screenshots

AI Clean Flow4 screens
PDF Reader4 screens

Verdict

The call

The clearest difference is review sentiment: AI Clean Flow at 43% against PDF Reader's 0%. AI Clean Flow also leads on rating (4.4 vs 4.0) and ratings volume (195 vs 23). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AI Clean Flow sells 9 in-app purchases, starting at $7.99 per 7 days and PDF Reader sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

AI Clean Flow holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: AI Clean Flow has 195 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 43% of AI Clean Flow's written reviews are positive against 0% of PDF Reader's.

UpkeepUpdate frequency

AI Clean Flow ships an update every 3 weeks, PDF Reader every 2 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
AI Clean Flow versus PDF Reader: the parameters behind the verdict, then further details
ParameterAI Clean FlowPDF Reader
PriceFreeFree
Rating4.4 (195 ratings) — better4.0 (23 ratings)
Positive reviews42.9% of reviews — better0.0% of reviews
Number of ratings195 — better23
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size202 MB42 MB
Age rating12+17+
Developer林知 郭欣 翁

Customer experience

AI Clean Flow

All ratings195 ratings
Positive82.6%
Neutral9.2%
Negative8.2%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

PDF Reader

All ratings13 ratings
Positive69.2%
Neutral15.4%
Negative15.4%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

9 purchases

AI Clean Flow

Subscriptions9
  • Weekly Sub$7.997 Days
  • Weekly Sub3 Days trial$7.997 Days
  • AI Clean Flow Pro Weekly7 Days trial2 variants$9.997 Days
Show 6 more
  • Weekly VIP3 Days trial$9.997 Days
  • Weekly VIP3 Days trial$14.997 Days
  • AI Clean Flow VIP$23.991 Year
  • Yearly VIP$29.991 Year
  • Annual subscription$39.991 Year
  • Yearly VIP$49.991 Year
2 purchases

PDF Reader

Subscriptions2
  • weekly$9.997 Days
  • yearly$29.991 Year

Questions

Is AI Clean Flow free?
AI Clean Flow is free to download, with in-app purchases available.
Is PDF Reader free?
PDF Reader is free to download, with in-app purchases available.
Which has better reviews, AI Clean Flow or PDF Reader?
AI Clean Flow is rated higher. AI Clean Flow averages 4.4 out of 5 from 195 ratings, while PDF Reader averages 4.0 from 23 ratings.
Do AI Clean Flow or PDF Reader have ads?
Both AI Clean Flow and PDF Reader show ads.
Which is updated more often, AI Clean Flow or PDF Reader?
AI Clean Flow ships an update every 3 weeks, and PDF Reader every 2 weeks. Most recently, AI Clean Flow was updated on November 6, 2026 and PDF Reader on November 5, 2026.

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